mml=<math xmlns="http://www.w3.org/1998/Math/MathML"><mstyle mathsize="12px"><mrow><msqrt><mn>2</mn><msup><mfenced separators="|"><mfrac><mn>1</mn><mi mathvariant="normal">x</mi></mfrac></mfenced><mn>4</mn></msup><mo>+</mo><msup><mfenced separators="|"><mfrac><mn>1</mn><mi mathvariant="normal">x</mi></mfrac></mfenced><mn>5</mn></msup></msqrt><mo>?</mo></mrow></mstyle></math>